Argex (also known as LECA) is manufactured by pelletising selected clays and firing them in rotary kilns. During firing, gases expand the pellets internally, creating a micropored core beneath a rigid ceramic shell. The result is a granule that’s four to five times lighter than conventional gravel, yet robust enough for civil applications.
It is chemically inert, frost and rot‑resistant, and Euroclass A1 non‑combustible.
With a typical loose bulk density around 0.30 – 0.35 t/m³ (grade dependent), Argex is an ultra‑light, spherical clay aggregate offering excellent drainage and reduced load. Used in construction and landscaping, Argex delivers thermal and acoustic benefits while easing structural demands in roofs, floors, and groundworks.
.
The hollow space between grains due to their shape allows for quick water drainage.
Improves envelope performance and reduces transmitted sound.
A1 Euroclass A1 for added peace of mind in sensetive build-ups
Chemically neutral, frost‑resistant, and reusable at end of life.
Type
Select Product
Loose/Bags
Dimensions
Enter length & width / area and depth
Tonnes required
0 tonnes
You need 0 tonnes of your selected product to cover this area.
This compares to 0 tonnes if using primary material (2.2 t/m³).
This is approximately 0.
Generating download 
Thank you for your enquiry!
We aim to return all quotes the same working day, however any quotes submitted after 1 pm may be returned the next working day.
Our knowledgeable team is here to assist you with all your aggregate needs and enquiries.
Quick, project-specific pricing,
built around your requirements.
Available...
View Product
Available...
View Product
Available...
View Product
Available...
View Product
Available...
View Product
Available...
View Product
Available...
View Product
Available...
View Product